On the radial colour variation in nine young populous clusters in the LMC

Details On the radial colour variation in nine young populous clusters in the LMC On the radial colour variation in nine young populous clusters in the LMC

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...110..348m&link_type=abstract

Astronomy and Astrophysics, vol. 110, no. 2, June 1982, p. 348-350.

Astronomy and Astrophysics

Astrophysics

1

Magellanic Clouds, Star Clusters, Stellar Color, Stellar Coronas, Stellar Evolution, Supergiant Stars, Hertzsprung-Russell Diagram, Milky Way Galaxy, Ratios, Red Giant Stars, Star Distribution, Stellar Structure

Scientific paper

The differences that appear between the ratios of the numbers of red to blue supergiants in the inner and outer regions of nine young populous clusters in the LMC are analyzed. The ratio of the numbers of red to blue supergiants is higher in the corona than in the central part. This is seen as suggesting delayed star formation in the central region of these clusters. In analyzing the results, attention is given to the problem of contamination by galactic foreground and LMC foreground and background stars. Two kinds of contamination, red and gray, are distinguished.

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